License Server Reboot 9AM Tuesday May 29

A reboot of the license server is scheduled from 9 a.m. Tuesday, May 29. It is expected to take 10 minutes to complete this reboot. During the reboot, we will pause the scheduling so no new job will be scheduled on all three clusters (Oakley, Ruby, and Owens). It won't impact most of the running jobs, but running jobs using special software packages may fail due to license error. For more information, see this link:

LAMMPS 16Mar18 is now available

Thursday, April 26, 2018 - 1:45pm

LAMMPS stable version 16Mar18 has been installed on Owens, Ruby, and Oakley.  These are GPU enabled installations.  16Mar18 is available with both MVAPICH2 and IntelMPI on all three clusters and on Owens also with OpenMPI.  Usage is via the module lammps/16Mar18.  For information on installation details, such as, available packages, see the output of the module help command:  "module help lammp

Beta OSCusage Command

We invite OSC clients to beta-test our new OSCusage command, which offers clients additional capabilities and data on usage. The command is available on all systems at /opt/osc/libexec/OSCusage. Please note this is currently in test mode and, hence, we cannot guarantee the accuracy of all the data it is reporting. Please contact OSC Help if you have any questions or find any issues with this command.

MDCS is no longer available

Wednesday, March 28, 2018 - 2:45pm

Matlab Distributed Computing Server (MDCS) is no longer available.

The major purpose of this feature was to allow users to use their local licenses that OSC didn't provide.

However, now OSC provides all the toolboxes to all the academic users. 


A downtime is scheduled for all HPC systems starting March 14, 2018, beginning at 7:00 A.M. and scheduled to finish by 5 P.M. The downtime will affect the Oakley, Owens, Ruby clusters. Login services and access to storage will not be available during this time. In preparation for the downtime the batch scheduler will begin holding jobs that cannot complete before March 14 at 7:00 A.M.


We will have rolling reboots of Oakley, Ruby and Owens clusters starting from Monday Feb 5, 2018 to address recent CPU vulnerabilities. Login nodes will be rebooted first. The rolling reboots won't affect any running jobs, but users may experience longer queue wait time than usual on all clusters. We apologize for any inconvenience this may cause you. Please contact if you have any questions.

Ruby SSH key fingerprints

These are the public key fingerprints for Ruby (in hexadecimal format):
ruby: = 01:21:16:c4:cd:43:d3:87:6d:fe:da:d1:ab:20:ba:4a
ruby: = eb:83:d9:ca:88:ba:e1:70:c9:a2:12:4b:61:ce:02:72
ruby: = ef:4c:f6:cd:83:88:d1:ad:13:50:f2:af:90:33:e9:70


Subscribe to Ruby